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RISDerivation of Modified Reynolds Equation: A Porous Media Model With Effects of Electrokinetics
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: A lubrication theory that includes the effects of electrokinetics and surface microstructure is developed. A porous layer attached to the impermeable substrate is used to model the microstructure ...
Surface Roughness Effects in Hydrodynamic Lubrication Involving the Mixture of Two Fluids
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: In this paper, the relations expressing the effects of surface roughness and homogeneous mixture (the mixture of power-law fluid inserted into a Newtonian fluid) on the roughness-induced flow ...
Derivation of Modified Reynolds Equation—A Porous Media Model
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: In this study, a porous media model is developed which can be applied to thin film lubrication problems. The microstructure of bearing surfaces is modeled as porous layers attached to the ...
Ultra-Thin Gas Squeeze Film Characteristics for Infinitely Large Squeeze Number
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: In this study, the characteristics of ultra-thin gas films are analyzed asymptotically for infinite squeeze number using the molecular gas film lubrication equation with coupled roughness and ...
Linear Stability Analysis of the Herringbone Groove Journal Bearings in Microsystems: Consideration of Gas Rarefaction Effects
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The dynamic performance of the herringbone groove journal bearings (HGJBs) with the effects of gas rarefaction taken into account is considered for applications in microsystems. Two important ...
Roughness Effects on the Dynamic Coefficients of Ultra-Thin Gas Film in Magnetic Recording
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The stiffness and damping coefficients of a slider gas bearing operating under arbitrary Knudsen number are calculated. A perfect gas is used as the lubricant, and its behavior is described ...
High-Frequency Fatigue Performance of Cracked Mortar after Epoxy Grouting Reinforcement
Publisher: American Society of Civil Engineers
Abstract: This paper presents the experimental study on the influence of grouting reinforcement on the fatigue behavior of cracked cement mortar under different stress ratio and levels. The compressive fatigue tests were conducted ...
Pure Squeeze Motion in a Magneto-Elastohydrodynamic Lubricated Spherical Conjunction
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The pure squeeze magneto-elastohydrodynamic lubrication (MEHL) motion of circular contacts with an electrically conducting fluid in the presence of a transverse magnetic field is explored under ...
Effects of Couple Stress on Elastohydrodynamic Lubrication at Impact Loading
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: In this paper, pure squeeze elastohydrodynamic lubrication motion of circular contacts with couple stress lubricant is explored at impact loading. On the basis of microcontinuum theory, the ...
A Model for Line-Contact EHL Problems—Consideration of Effects of Navier-Slip and Lubricant Rheology
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The coupled extended Reynolds (which includes the effects of Navier-slip and flow rheology), elasticity deformation, and the load equilibrium (under a constant load condition) equations are solved ...